The international calling system is used to call countries from various other parts of the world. The international calling system is made possible with the help of various systems including the calling cards. When a particular part of the country is to be reached from outside the country, people have to know the procedures to be followed.
If you have to call New Zealand from outside the country, you have to have a basic idea of the calling system in the country. The important aspect of the calling system will be slightly different based on which country is you situated in. still, you will have a city code which is varying for each city.
The international calling in New Zealand is possible if you know the country code of the place to which you are making calls. If you are making a call from outside to New Zealand, you have the country code 64. Again, you should know the basic city code of each important city in the country. The city code of Auckland is 9 that of Christ Church are 3, Dunedin is 3 and Hamilton is 7.
Other important cities of the country are Hastings with a city code of 6, Invercargill with 2 and Napier with 6. Nelson can be reached through the city code 3.